/* Общие стили приложения */
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ===== Оверлей загрузки с анимацией логотипа ===== */
.page-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(248, 249, 250, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.35s ease-out, visibility 0.35s ease-out;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.page-loader-inner {
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader-logo-container {
    position: relative;
    width: 140px;
    height: 140px;
}

.loader-logo-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0.25;
    pointer-events: none;
}

.loader-logo-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0;
    background-color: #0f5132;
    mask-image: var(--loader-img);
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: bottom center;
    -webkit-mask-image: var(--loader-img);
    -webkit-mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: bottom center;
    animation: loaderFillUp 0.3s ease-out forwards;
}

.loader-logo-fill.loop {
    animation: loaderFillLoop 0.6s ease-in-out infinite;
}

@keyframes loaderFillUp {
    to {
        height: 100%;
    }
}

@keyframes loaderFillLoop {
    0%, 100% { height: 100%; }
    50% { height: 0; }
}

main.container {
    margin-bottom: 2.5rem;
}

/* Карточки и таблицы */
.card {
    border-radius: 0.6rem;
}

.table thead th {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: #6c757d;
    border-bottom-width: 1px;
}

.table tbody td {
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background-color: #f5f7fb;
}

/* Прилипающая шапка таблицы */
.table-sticky-header thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    background-color: #f8f9fa;
}

/* Формы фильтров */
.filters-bar {
    border-radius: 0.6rem;
    background-color: #ffffff;
    padding: 0.75rem 1rem;
}

@media (min-width: 768px) {
    .filters-bar .form-control,
    .filters-bar .form-select {
        max-width: 260px;
    }
}

/* Уведомления */
.messages-wrapper {
    margin-bottom: 1rem;
}

/* Header — высота примерно на 10% меньше */
header .navbar {
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
}
header .navbar .navbar-brand {
    padding-top: 0.15rem;
    padding-bottom: 0.15rem;
    margin-left: 0;
    margin-right: auto;
}
header .navbar .container {
    padding-left: 0.25rem;
}

.navbar-brand-logo {
    width: 18px;
    height: 18px;
    object-fit: contain;
    border-radius: 50%;
    transform: translateY(-1px);
}

/* Dropdown профиля в header — без стрелки, как на скриншоте */
header .navbar .nav-item.dropdown .dropdown-toggle::after {
    display: none;
}

header .navbar .dropdown-menu {
    border-radius: 0.5rem;
    border: 1px solid rgba(0, 0, 0, 0.08);
    padding: 0.35rem;
}

header .navbar .dropdown-item-form {
    padding: 0;
}

header .navbar .dropdown-item-form .dropdown-item {
    width: 100%;
    text-align: left;
    border-radius: 0.35rem;
    border: none;
    background: transparent;
    cursor: pointer;
    color: #212529;
}

header .navbar .dropdown-item-form .dropdown-item:hover {
    background-color: #f8f9fa;
}

/* Иконка книги «База знаний» в header */
header .navbar .nav-icon-book {
    flex-shrink: 0;
}

/* Студенты с гражданством не РФ — жёлтая подсветка ФИО */
.table td.student-non-russia,
.table th.student-non-russia {
    background-color: #fff3cd !important;
}
.table td.student-non-russia:hover,
.table th.student-non-russia:hover {
    background-color: #ffe69c !important;
}

/* Групповое расписание (публичная страница) */
.group-schedule-accordion .accordion-button {
    gap: 0.25rem;
    align-items: center;
    justify-content: flex-start;
    position: relative;
    padding-right: 3rem;
}

.group-schedule-accordion .accordion-button::after {
    margin-left: auto;
}

.group-schedule-head-date {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    flex: 1 1 auto;
    min-width: 0;
}

.group-schedule-head-count {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    font-weight: 600;
    min-width: 5.75rem;
    padding: 0.35rem 0.9rem;
    font-size: 0.8rem;
}

.group-schedule-slot {
    width: 5rem;
    flex-shrink: 0;
    text-align: center;
}

.group-schedule-number {
    width: 2rem;
    height: 2rem;
    margin: 0 auto 0.35rem;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #198754;
    color: #fff;
    font-weight: 700;
    line-height: 1;
}

.group-schedule-archive-accordion .accordion-item {
    background-color: #f3f5f7;
}

.group-schedule-archive-accordion .accordion-button {
    background-color: #e9edf1;
}

.group-schedule-archive-accordion .accordion-button:not(.collapsed) {
    background-color: #dfe5eb;
}

.group-schedule-archive-accordion .accordion-body,
.group-schedule-archive-accordion .list-group-item {
    background-color: #f3f5f7;
}

@media (max-width: 575.98px) {
    .group-schedule-head-count {
        min-width: 5.15rem;
        font-size: 0.85rem;
    }

    .group-schedule-row {
        flex-direction: column;
        gap: 0.5rem !important;
    }

    .group-schedule-slot {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: 0.75rem;
        text-align: left;
    }

    .group-schedule-number {
        margin: 0;
    }
}

/* ===== Журнал занятия ===== */
.lesson-journal-page {
    max-width: 1100px;
    margin: 0 auto;
}

.lesson-journal-hero {
    background: linear-gradient(135deg, #157347 0%, #198754 55%, #20c997 100%);
    color: #fff;
    border-radius: 1rem;
    padding: 1.25rem 1.35rem;
    margin-bottom: 1rem;
    box-shadow: 0 0.4rem 1rem rgba(25, 135, 84, 0.18);
}

.lesson-journal-hero-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 0 0 0.35rem;
}

.lesson-journal-hero-subtitle {
    margin: 0;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.95);
}

.lesson-journal-alert {
    border-radius: 0.9rem;
    padding: 0.85rem 1.1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.lesson-journal-alert-info {
    background: #e7f1ff;
    border-color: #b3d4fc;
    color: #0d47a1;
}

.lesson-journal-alert-warning {
    background: #fff8db;
    border-color: #ffe69c;
    color: #6b5a00;
}

.lesson-journal-alert-success {
    background: #dff3e7;
    border-color: #81c784;
    color: #1f3d2e;
}

.lesson-journal-card {
    border: 1px solid #e9ecef;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.04);
}

.lesson-journal-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.2rem;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.lesson-journal-search {
    display: flex;
    align-items: center;
    max-width: 280px;
    flex: 1;
    min-width: 180px;
}

.lesson-journal-search-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0.6rem;
    min-height: 31px;
    background: #fff;
    border: 1px solid #ced4da;
    border-right: 0;
    border-radius: 0.5rem 0 0 0.5rem;
    font-size: 0.9rem;
    line-height: 1;
}

.lesson-journal-search .form-control {
    border-radius: 0 0.5rem 0.5rem 0;
    border-left: 0;
    min-height: 31px;
}

.lesson-journal-search .form-control:focus {
    border-left: 0;
    box-shadow: none;
}

.lesson-journal-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.lesson-journal-btn-pill {
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.82rem;
}

.lesson-journal-btn-present {
    border: 1px solid #198754;
    color: #198754;
    background: #fff;
}
.lesson-journal-btn-present:hover {
    background: #e8f5e9;
    border-color: #198754;
    color: #157347;
}

.lesson-journal-btn-absent {
    border: 1px solid #dc3545;
    color: #dc3545;
    background: #fff;
}
.lesson-journal-btn-absent:hover {
    background: #ffebee;
    border-color: #dc3545;
    color: #c62828;
}

.lesson-journal-btn-clear {
    border: 1px solid #6c757d;
    color: #6c757d;
    background: #fff;
}
.lesson-journal-btn-clear:hover {
    background: #f5f7fb;
    border-color: #6c757d;
    color: #495057;
}

.lesson-journal-table-wrap {
    padding: 0 1.2rem 1rem;
    overflow-x: auto;
}

.lesson-journal-table-wrap .table {
    margin-bottom: 0;
}

.lesson-journal-table-wrap thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    background: #f8f9fa;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #6c757d;
    border-bottom: 1px solid #dee2e6;
    padding: 0.6rem 0.75rem;
    white-space: nowrap;
}

.lesson-journal-table-wrap tbody td {
    padding: 0.5rem 0.75rem;
    vertical-align: middle;
}

.lesson-journal-table-wrap tbody tr:hover {
    background-color: #f5f7fb;
}

.lesson-journal-student-name {
    font-weight: 400;
    min-width: 180px;
}

.lesson-journal-student-clickable {
    cursor: pointer;
}

.lesson-journal-cell-grade { max-width: 85px; }
.lesson-journal-cell-attendance { min-width: 130px; max-width: 145px; }
.lesson-journal-by-other {
    font-size: 0.7rem;
    font-weight: normal;
}
.lesson-journal-cell-reason { min-width: 160px; }
.lesson-journal-cell-comment { min-width: 200px; }

.lesson-comment-controls .lesson-comment-select,
.lesson-comment-controls .lesson-comment-text {
    width: 100%;
}

.lesson-journal-table-wrap .form-control,
.lesson-journal-table-wrap .form-select {
    border-radius: 0.45rem;
    font-size: 0.875rem;
}

#lesson-journal-table select.journal-attendance-present {
    background-color: #e8f5e9 !important;
    border-color: #81c784 !important;
    color: #2e7d32;
}
#lesson-journal-table select.journal-attendance-late {
    background-color: #fff8e1 !important;
    border-color: #ffca28 !important;
    color: #f57f17;
}
#lesson-journal-table select.journal-attendance-absent {
    background-color: #ffebee !important;
    border-color: #e57373 !important;
    color: #c62828;
}
#lesson-journal-table select.journal-attendance-worked-off {
    background-color: #e7f1ff !important;
    border-color: #0d6efd !important;
    color: #0d6efd;
}
#lesson-journal-table select.journal-attendance-tech-fix {
    background-color: #d1e7dd !important;
    border-color: #0f5132 !important;
    color: #0f5132;
}

.lesson-journal-footer {
    padding: 0.9rem 1.2rem;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
    text-align: right;
}

.lesson-journal-btn-save {
    border: 0;
    border-radius: 999px;
    padding: 0.5rem 1.25rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #157347 0%, #198754 55%, #20c997 100%);
}
.lesson-journal-btn-save:hover {
    background: linear-gradient(135deg, #0f5132 0%, #157347 55%, #198754 100%);
    color: #fff;
}

@media (max-width: 767.98px) {
    .lesson-journal-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .lesson-journal-search { max-width: none; }
    .lesson-journal-actions { justify-content: flex-start; }
}